2-Minute Classroom: Motion

Presenter

• Virgil Rick

Key Topics

• Speed
• Velocity
• Acceleration

Key Concepts

Speed

• Definition: The rate at which something changes its position
• Formula: Distance over time (e.g., miles per hour, kilometers per hour, meters per second)
• Types of Speed:
  • Instantaneous Speed: Speed at an exact moment
  • Average Speed: Total distance divided by total time

Velocity

• Definition: Speed with a direction attached to it (vector quantity)
• Example: 72 miles per hour east
• Key Difference from Speed: Direction component

Acceleration

• Definition: The rate at which velocity changes
• Formula: Distance per time per time (e.g., meters per second squared)
• Types of Acceleration:
  • Positive Acceleration: Speeding up
  • Negative Acceleration: Slowing down
• Direction Component: Changing direction even if speed is constant is also acceleration

Recap

• Speed: Rate of motion (distance/time)
• Velocity: Speed with direction (distance/time with direction)
• Acceleration: Rate at which velocity changes (distance/time squared)
• Acceleration includes speeding up, slowing down, and changing direction

Conclusion

• Science is fascinating
• Encouragement to engage with the content through comments and sharing